title: Safety of early mobilization of patients with blunt solid organ injuries.
abstract: BACKGROUND
  Many surgeons believe that early mobilization of patients with blunt solid organ injuries increases the risk of delayed hemorrhage.
  
  
  OBJECTIVE
  To determine whether there is an association between the day of mobilization and rates of delayed hemorrhage from blunt solid organ injuries.
  
  
  METHODS
  Retrospective cohort study. Univariate and multivariate analyses were performed to determine the association of mobilization with delayed hemorrhage of a solid organ requiring laparotomy.
  
  
  METHODS
  Level I trauma center.
  
  
  METHODS
  Adults with blunt renal, hepatic, or splenic injuries were identified from a trauma registry.
  
  
  METHODS
  Medical records were used to determine the day of mobilization and to identify patients with delayed hemorrhage requiring laparotomy.
  
  
  RESULTS
  Four hundred fifty-four patients with blunt solid organ injuries were admitted to the hospital for nonoperative management. Failure rates of nonoperative management were 4.0%, 1.0%, and 7.1% for renal, hepatic, and splenic injuries, respectively. No patients with renal or hepatic injuries failed secondary to delayed hemorrhage. Ten patients (5.5%) with splenic injuries failed secondary to delayed hemorrhage. Eighty-four percent of patients with renal injuries, 80% with hepatic injuries, and 77% with splenic injuries were mobilized within 72 hours of admission. Day of mobilization was not associated with delayed splenic rupture in multivariate analysis (odds ratio, 0.97; 95% confidence interval, 0.90-1.05).
  
  
  CONCLUSIONS
  The timing of mobilization of patients with blunt solid organ injuries does not seem to contribute to delayed hemorrhage requiring laparotomy. Protocols incorporating periods of strict bed rest are unnecessary.
authors.affiliation: Division of Trauma and Emergency Surgery, Department of Surgery, University of California, Davis, 2315 Stockton Blvd, Ste 4207, Sacramento, CA 95817, USA. Jason.london@ucdmc.ucdavis.edu
authors.forename: Jason A
authors.initials: JA
authors.lastname: London
authors.forename: Lisa
authors.initials: L
authors.lastname: Parry
authors.forename: Joseph
authors.initials: J
authors.lastname: Galante
authors.forename: Felix
authors.initials: F
authors.lastname: Battistella
mesh_terms: D000007:Abdominal Injuries / Q000175:diagnosis / Q000401:mortality / Q000628:therapy*; D000328:Adult; D000704:Analysis of Variance; D015331:Cohort Studies; D004434:Early Ambulation / Q000379:methods* / Q000706:statistics & numerical data; D005260:Female; D005500:Follow-Up Studies; D006470:Hemorrhage / Q000401:mortality / Q000517:prevention & control*; D006801:Humans; D015601:Injury Severity Score; D007668:Kidney / Q000293:injuries; D007813:Laparotomy / Q000379:methods / Q000706:statistics & numerical data; D008099:Liver / Q000293:injuries; D055370:Lung Injury; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011336:Probability; D012042:Registries; D012189:Retrospective Studies; D018570:Risk Assessment; D017751:Safety Management; D012680:Sensitivity and Specificity; D013161:Splenic Rupture / Q000175:diagnosis / Q000401:mortality / Q000628:therapy; D016019:Survival Analysis; D013898:Thoracic Injuries / Q000175:diagnosis / Q000401:mortality / Q000628:therapy*; D013997:Time Factors; D014193:Trauma Centers; D016896:Treatment Outcome; D014949:Wounds, Nonpenetrating / Q000175:diagnosis / Q000401:mortality / Q000628:therapy*